Feed-mill



4 Shets-Sheet 1. F. PHILIP.

(No Model.)

FEED MILL.

Patented Aug. 11, 1896.

INVENTSS WITNESSES.

(No Model.) '4 Sheets-Sheet 2.

F. PHILIP.

v FEED MILL. No. 565,690. Patented Aug. 11, 1896.

I2/ NTUR WITNESSES ZQPW'MZMWWK 3y (No Model.) 4 Sheets-Sheet 3,

P. PHILIP. FEED MILL;

No. 565,690, Patented Aug. 11, 1896.

WNW-INTER:

(No Model. 4 Sheets-Sheet 4. F. PHILIP.

FEED MILL.

No. 565,690. Patented Aug. 11; 1896 Fig-1|] l INVENTEIFh WITNESSES:

f PATENT Prion.

FRANK PHILIP, OF STOCKPORT, NEIV YORK.

FEED- MILL.

SPECIFICATION forming part of Letters Patent No. 565,690, dated August11, 1896.

Application filed March 15, 1890. $eria1 No. 344,068. (No model.)

also in a cob-breaking attachment; also in the regulating apparatus forgoverning the degree of reduction, andalso in the contrivances of thevarious parts of the apparatus for economy of construction, all ashereinafter fully described, reference being made to the accompanyingdrawings, in which- Figure 1 is a vertical section of my i1nproved millas used for grinding corn in the ear and other coarse materials, thesection being inthe plane of the shaft. Fig. 2 is a front elevation ofthe mill with the hopper and feed apparatus used for regulatingthe feed.Fig. 3 is a front elevation of the feedshoe. Fig. 4 is a longitudinalsection of part of the feedshoe. Fig. 5 is a rear elevation of thefeedshoe and part of the feed-hopper and its supports. Figs. 6 and 7 areface views of the grinding-plates, respectively. Figs. 8 and 9 aredetails of feeding and crushing devices, on lines 00 a: and y y,respectively, Fig. 1. Fig. 10 is a side elevation of the mill, showingan elevating-discharge for delivering the ground material into bags.

I employvertical grinding-disks, as a, which is stationary, and h, whichrevolves and being in this example made of chilled iron or steel and ina special form of construction, which is part of my invention and willbe described farther on, but so far as the rest of my invention isconcerned I may use disks of any approved material or form ofconstruction.

The disk a is bolted to the inside of ,the vertical side 0 of theinclosing case at (Z. The disk I) is similarly bolted to the rotatingdisk 6 at f, which is keyed fast to the shaft g, having one of itsbearings in the hub 72 of the side 0 of the case and the other bearingin the hub i of the spider j which is bolted at the extremities of thearms of the spider to the side it of the case. The disk 6 has radialarms Z, reaching beyond the periphery of the grind ing-disks a shortdistance to serve like the the arms of the hub.

wings of a fan for discharging the ground material through theelevating-spout 9 which it is sometimes desirable to use for deliveringit directly into bags; otherwise it maybe delivered downward through thespout an, according as the gates in are adjusted. The side It of thecase has a large central opening to admit air for promoting a currentthrough the discharge-spout, facilitating the discharge of the groundmaterial, said current being generated by the rotating disks and thearms I.

The shaft carrying the rotating disk is driven by a pulley n 011 the endprojecting from the side of the case to which the stationarygrindingdisk a is attached, and it carries a fly-wheel 0 next to .saidpulley for steady ing the motion. At the other extremity of the shaft itbears against a thrust step-plate 19, located in and adjustable alongthe box q, bolted to the outer end of bearing-hub i, and having itsbearing-support in opposition to the shaft onthe end of theregulating-screw t, which is controlled for adjusting. the rotatinggrinding-disk, and also for allowing said disk to give way for relief incase of need by the nut to, lever o, and spring w, said nut beingadjustable and holding the screw, and bearing against the end of box q,but not connected to it, and the lever and springpressing the screw andnut against the end of i the box, the spring having the requisite powerto hold the rotating grinding-disk up to its work, but adapted to yieldand allow the necessary relief to prevent breaking the grinding-disks orother parts in case a stone, piece of iron, or other like substance toohard for being ground happens to get into the mill, said spring-leverand nut then allowing the rotating disk to be forced apart from theother disk as necessary while such object is between the disks andrestoring it to the normal position at once when relieved of saidobject. The box (1 is centered on the end of hub i by the circularrecess sin the inner end of said box, and is detachably fastened theretoby the bolts as, inserted through its flange and The screwi is fitted toshift lengthwise freely through the outer end of box q, and the nut ithas bearing contact only with the box. The nut has a hand-wheel y forturningit readily toregulate the grinding-disks by shifting the screwoutward or allowing the screw to be forced farther in by the lever andspring, and said wheel is notched at z, and a gravity-latch a is fixedon the lever-pivot b suitably for engaging the notch and preventing thenut from working by the jar of the mill, as it might otherwise do attimes when there is not much pressure on it, owing to the counteractingpressure of the material being ground on the spring w.

The lever o is pivoted at the upper end to the link .0, which isdetachably connected to the standard (1 of hub 'i by its T-head e,

inserted in the bifurcated upper end of the standard under theprojecting ribs f on the back of the standard, where it is securelyretained by the stress of the spring in on the lever, but from which thelink can be instantly detached by pulling the lower end of the leverforward and thrusting the T-head backward the width of the ribsf or alittle more.

The T-head e and ribsf are beveled, as

show-n in Fig. 1, to facilitate the ready connection and disconnectionof the link. This device provides a simple means of effecting the saiddetachable connection without fitting. Such a detachable connection isvery useful, because it facilitates the adjustment of the spring w alongthe notched section g of the lever for varying the power of the spring,which is frequently required, the op eration being, first, pulling thelower end of the lever outward and disconnecting the link, thenslackening the spring free of tension, then shifting the coil embracingthe notched end of the lever along the same from one notch to another,and then again pulling out the notched end and stretching the spring soas .to pass the T-head a back over the retaining-ribs f of the standard.

The side a of the case has a central hollow conical extension h, on theouter end of which is the other bearing-hub h of the shaft and withinwhich is a feeding and crushing space i 7, containing the feeding andcrushing wingcones k and Z, both mounted on the shaft 9 and clamped tothe rotating disk e by the yokes 'm, and also containing the stationaryinternally-fluted ring-crusher it, between which and the wings orflanges of cone l any large grains or particles are reduced preparatoryto entering between the grinding-disks. Th1s ring at 1s also cone-shapedand fits in flanges that no fitting is required other than 3 the holesin the disk for the yokes and the fittingof the nuts on the yokes. Thewingcone vZ has a conical central hole, which at one end centers it onthe shaft and at the other end on the hub of disk 6.

The material to be ground enters space j through an opening 19 at theouter upper ex tremity of extension h from the hopper q, the quantitybeing regulated by a slide 5', which graduates the opening in such caseswhen required.

The hopper has a bottom plate t bearing on the top of the part h of thecase and bolted thereto at c, said part h having a suitable flat top forseating said bottom of the hopper. The hopper also has a flange abearing on the top of the case. Within the hopper is a rotary stirringand cob-breaking arm w, carried .by the short shaft x, located in thebearing-hub 11 and geared by the wheel 2'' and pinion a with the shaft9. The hopper also has the cob-breaking vertical inwardly-projectingflanges b and 0 between which the rotary breaker 10 works so as to breakthe cobs suitably for feeding through passage 10' to the feeders andcrushers in space j, effecting further reduction therein preparatory toentering between the disks for final reduction. The hopper may beattached in any approved way, and I do not go into details respectingit, but it is to be observed that it is detachably secured so that itmay be removed when desired, and the ears of corn may be fed into spacej by hand to be broken by the wing-cones.

For shelled corn or other fine grain that will feed regularly anotherhopper d is used, with a vibrating feed-shoe 6 under it, and ashaking-rod f for working it by a tappet g on the shaft g, said hopperbeing bolted on the brackets 71 seated on the top of the case at '6 anddetachably secured by hooking under the brackets h so that said hoppercan be put on and taken oif readily so as to feed into hopper g from theshoe 6 In this example I have represented the elevation of this hoppersuch that part of one side of hopper g has to be displaced, and withsuch part broken out in Fig. 2 to receive-the shoe suitably fordischarging into it, but the elevation of said hopper (1 may, of course,be sufficient for the shoe to reach over the top of the 110pper g, asmay be preferred; but this hopper maybe seated lower, so as to feeddirectly into space j through opening 19 without using the cob-breakinghopper, if desired.

The hopper d has a cast-metal bottom section 75, on which the flanges 7'are cast; also a hanger Z from the upper shoulder of which the shoe 6 issuspended by a yoke m restin gin a notch of said shoulder, asrepresented in Fig. 5, and through the lower end of which hanger theshoe-adjusting screw 12 works to hold the shoe in its proper positionand vary the height of the opposite end for regulating the feed, the endof said screw bearing against the heel of the shoe, so as to raise orlower the other end according as the screw is screwed forward orbackward through the hanger Z The check-nut o prevents the screw fromworking slack. Instead of the usual single feed groove or channel fordis- IIO charging asingle stream out of the mouth of the shoe, I providetwo such discharge-pas- ,sages 10 by making the upturned toe g in themiddle of the mouth and thus dividing said mouth. It is a means ofretaining a surplus in the shoe, which, when driving by the irregularmotion of a tread-power, will on undue acceleration of the motion giveout an excess of feed and check the motion.

The shoe is made thin in the main portion for lightness, and the tongueg is stiffened by the inset rib F. The shaking-rod f has aspring-section f and a hook-head e on the upper end. It is sprungbetween two prongs d projecting from the side of the hopper andretaining the rod in position by its tension for a simple detachableconnection. Said rod is connected with the shoe by the eye-loop c andextends down where the tap pet 9 takes effect to thrust it forward, andits spring-section f retracts it.

The grinding-disks are made with a series of annular flanges n andintersecting radial flanges Q2 on the confronting faces between whichare recesses 10*, the annular flanges of the disks being disposed sothat the circumferential flanges of one disk are intermediate to thoseof the other disk radially, and the stationary disk hasinternally-projecting teeth 00 in its eye or central opening confrontingthe wing-flanges of cone-crusher Z, which extends through said eye toand abuts against the face of the disk e, carrying the rotatinggrinding-disk b. It will be seen that the course of the material is overboth the radial and circumferential flanges from the recesses of onedisk into those of the other, alternately and continually crossing thecutting-edge forward and backward from the recesses of one disk to thoseof the other, so as to be subject to the cuts of the passing flanges invast numbers, calculated to effect exceedingly rapid reduction and toinvest the mill with great capacity.

I claim as my invention- 1. A pair of grinding-disks having theconcentric circular and intersect-ingradial flanges with intermediaterecesses and so arranged that the concentric circular flanges of onedisk are intermediate to those of the other substantially as described.

2. The combination with a pair of vertical grinding-disks, of thelaterally-extended hollow cone-receptacle for the material to be ground,the separate detachably-arranged internally-toothed crushingring locatedtherein, said ring removably connected with its base abutting the backof the stationary disk, by the taper cone-receptacle and the rotatingfeeding and crushing wing-cone extendin g through the said ringsubstantially as described.

3. The combination with the shaft and the rotating disk, of thewing-cones centered on the shaft and clamped against the face of saiddisk by the yokes embracing the wings the yokes coupling the cones tothe disk by the wings substantially as described.

4. The combination with the feed-hopper, of the cob-breaker consistingof the rotating arm over the feed-passage from the hopper, and thevertical flanges at the opposite sides of the lower part of the circuitof the said arm substantially as described.

5. The combination with the laterally-extended feed-receptacle and thehorizontal shaft of the hopper located on the outer extremity of thereceptacle the bearing-hub attached to the hopper, rotating cob-breakingarm having the sole bearing for its shaft in said hub and being mountedon the inner end of said shaft the vertical flanges at the oppositesides of the lower part of the circuit of the said arm the driving-wheelon the outer end of said shaft and the pinion on the grinding-diskshaft, substantially as described.

6. The combination with the hopper and feed-shoe suspended at its closedend from the hopper by the heel-yoke of the shoe, of the adjusting-screwin the hanger abutting against the level of the shoe and adapted toadjust the toe or open .end vertically substantially as described.

7. The feed-shoe having the outwardly-upturned tongue in the mouthdividing the outflowpassage of the shoe substantially as described.

8. The combination of the hopper, feedshoe, the feed-shoe working rodhaving the spring-section sprung between the retainingprongs anddetachably hooked on the upper edge of the hopper above said prongs andthe tappet on the shaft substantially as described.

9. The combination with the disk-carrying shaft and the step-box, of theadjusting-screw shifting freely through said box, the adjusting-nutresting against the end of the box and the lever and spring holding thescrew and nut substantially as described.

10. The combination with the lever, spring and screw, of thelever-holding link detachably connected to the standard of theshaftbearing hub by the T-head of the link and the bifurcated ribbed endof the standard, substantially as described.

11. The combination with the notched hand-wheel of the adjusting-nut, ofthe gravity-latch on the lever pivot engaging the notch of thehand-wheel said latch pivoted together with the lever substantially asdescribed.

In testimony that I claim the foregoing as myinvention I have signed myname, in presence of two witnesses, this 17th day of August, 1889.

. FRANK PHILIP. Witnesses; 7 JAMES A. Hovna, ORMEROD HANSON.

IIS

